The A/Z dependence of projectile fragmentation at relativistic energies has been studied with theALADIN forward spectrometer at SIS. A stable beam of 124Sn and radioactive beams of 124La and 107Sn at600 MeV per nucleon have been used in order to explore a wide range of isotopic compositions. Chemicalfreeze-out temperatures are found to be nearly invariant with respect to the A/Z of the produced spectatorsources, consistent with predictions for expanded systems. Small Coulomb effects (DT =0.6 MeV)appear for residue production near the onset of multifragmentation.

Isotopic Dependence of the Nuclear Caloric Curve

IMME', Giuseppina;
2009

Abstract

The A/Z dependence of projectile fragmentation at relativistic energies has been studied with theALADIN forward spectrometer at SIS. A stable beam of 124Sn and radioactive beams of 124La and 107Sn at600 MeV per nucleon have been used in order to explore a wide range of isotopic compositions. Chemicalfreeze-out temperatures are found to be nearly invariant with respect to the A/Z of the produced spectatorsources, consistent with predictions for expanded systems. Small Coulomb effects (DT =0.6 MeV)appear for residue production near the onset of multifragmentation.
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Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/20.500.11769/33831
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